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DocumentOther documentA preliminary study on ecological features of two natural enemies against two vectors of pine wilt disease for mass rearing in Korea
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Two species of the genus Monochamus (Coleoptera: Cerambycidae), M. alternatus and M. saltuarius are well-known as vectors of the pine wilt disease and they causes economically damages in South Korea. Among various control methods to reduce the density of vectors, a method by biological control agents (natural enemies) is eco-friendly indispensable. Since 2017, we have carried out the studies on the parasitic natural enemies againt for the vector species and found two parasitoids, Spathius verustus Chao, 1977 (Braconidae) and Cyanopterus flavator (Fabricius, 1793) (Bracondiae), would be a useful agents for biological controls. For accumulation of biological data, we conducted a preliminary study on life span and parasitic rate of two parasitic wasps against for two vector species. As results, we found that S. verustus has the longest adult life span of 33.4±19.2 days (avg.) in M. alternatus (T=30°C, H=60%) and C. flavator has the longest adult life span of 25.1±10.6 days (avg.) in M. alternatus (T=25°C, H=60%). The average parasitic rate (62.5%) of S. verustus was highest in M. alternatus (T=30°C, H=60%). In addition, it is confirmed that the offsprings of S. verustus can be made by parthenogenetic reproducton. Keywords: Research ID: 3622037 -
DocumentOther documentA study on the ecotourism cooperation using the forest cultural heritage in South and North Korea - Focusing on the Geumgangsan Yusan-gi (Geumgang mountain travels)
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Forest restoration and ecological protection in North Korea require a variety of approaches.
This research focuses on the Geumgangsan Yusan-gi, a shared forest cultural heritage between the two Koreas, to find ways to collaborate with ecotourism.
Is ecotourism a novel approach to Inter-Korean forest cooperation?
What are the advantages and prospects of working together on ecotourism projects centered on the Geumgangsan Yusan-gi?
To achieve the study's goal, North Korean literature data were reviewed and analyzed, and value models for ecotourism cooperation were investigated using content analysis of the Geumgangsan Yusan-gi.
Inter-Korean forest cooperation has primarily focused on planting and management to prevent forest devastation in North Korea.
Forest cooperation needs to develop into a scalable project that connects peace and tourism.
Ecotourism has the potential to be a new model for inter-Korean forest cooperation.
First, ecotourism cooperation pursues reciprocity.
Second, ecotourism is a sustainable project different from one-time support.
Third, ecotourism can be backed by the international community and promoted readily in the face of North Korean sanctions.
Fourth, the ecotourism cooperation project is in line with the Kim Jong-un administration's current tourism policy.
Fifth, the inter-Korean collaboration project based on the two Koreas' shared forest cultural legacy is a unique initiative rooted in Korea's history and tradition.
The Geumgangsan Yusan-gi can promote ecotourism cooperation, such as joint inter-Korean investigation and program development and operation.
To become a reality rather than a pipe dream, this proposal must overcome some obstacles, including the US and international community sanctions against North Korea.
Civil society organizations, such as forests and environmental organizations, play an important role in peace initiatives such as ecotourism and forest cooperation. Keywords: Deforestation and forest degradation, Biodiversity conservation, Education, Human health and well-being, Sustainable forest management ID: 3622982 -
DocumentOther documentReview of sustainable Korea’s oak tree resource management model for cultivation of oak mushroom
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Oak mushroom is one of the most popular edible mushrooms in Asia, including Korea, China, and Japan. It has been grown by log cultivation method using oak tree species in Korea since the 1950s. However, the decades of reckless deforestation of oak trees for oak mushroom grow has recently led to the need for protection in Korea's forests to prevent oak resource depletion. As of 2019, there were 3,764 log cultivation farms in Korea and the total amount of oak mushroom log was 39 million. Average cultivation period is 3 years and 12 million oak logs are needed every year. According to a survey of shiitake growers, 87.3% of the respondents said that the most preferred species were Sawtooth oak(Quercus acutissima Carruth), and the most preferred diameter was 16 to 20cm, with 43%. The distribution status of oak trees across the country was found to be 1.44 million hectares with growing stock of 160 million m3, and the preferred Sawtooth oak was 91,370 hectares with growing stock of 10 million m3. When oak trees which are between 20 and 30cm in diameter at breast height are cut, they are the most effective use of resources, the available quantity for log cultivation was 8 to 11. However, if the diameter at breast height exceeds 30cm, the available quantity decreases. The number of Sawtooth oak trees that can be produced as logs for oak mushroom cultivation is 321 million, and the annual actual demand is 12 million, so the supply is sufficiently sustainable in the future. However, in the actual field, there are many restrictions on the use, such as the location accessibility, possibility of collecting felled trees, and possibility of using oak mushroom cultivation. It is expected to continuously produce Sawtooth oak logs for shiitake cultivation every 15 to 20 years due to its rapid growth compared to planted land, if the area where more thanv 1,200 oak trees are distributed per 1 hectares is harvested and then maintained through reproduction by sprout. Keywords: Sustainable forest management, Agriculture, Deforestation and forest degradation, Food systems, Research ID: 3622504
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Book (stand-alone)Technical bookThe future of food and agriculture - Trends and challenges 2017
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No results found.What will be needed to realize the vision of a world free from hunger and malnutrition? After shedding light on the nature of the challenges that agriculture and food systems are facing now and throughout the 21st century, the study provides insights into what is at stake and what needs to be done. “Business as usual” is not an option. Major transformations in agricultural systems, rural economies, and natural resources management are necessary. The present study was undertaken for the quadrennial review of FAO’s strategic framework and for the preparation of the Organization Medium-Term plan 2018-2021. -
Book (series)FlagshipThe State of Food Security and Nutrition in the World 2021
Transforming food systems for food security, improved nutrition and affordable healthy diets for all
2021In recent years, several major drivers have put the world off track to ending world hunger and malnutrition in all its forms by 2030. The challenges have grown with the COVID-19 pandemic and related containment measures. This report presents the first global assessment of food insecurity and malnutrition for 2020 and offers some indication of what hunger might look like by 2030 in a scenario further complicated by the enduring effects of the COVID-19 pandemic. It also includes new estimates of the cost and affordability of healthy diets, which provide an important link between the food security and nutrition indicators and the analysis of their trends. Altogether, the report highlights the need for a deeper reflection on how to better address the global food security and nutrition situation.To understand how hunger and malnutrition have reached these critical levels, this report draws on the analyses of the past four editions, which have produced a vast, evidence-based body of knowledge of the major drivers behind the recent changes in food security and nutrition. These drivers, which are increasing in frequency and intensity, include conflicts, climate variability and extremes, and economic slowdowns and downturns – all exacerbated by the underlying causes of poverty and very high and persistent levels of inequality. In addition, millions of people around the world suffer from food insecurity and different forms of malnutrition because they cannot afford the cost of healthy diets. From a synthesized understanding of this knowledge, updates and additional analyses are generated to create a holistic view of the combined effects of these drivers, both on each other and on food systems, and how they negatively affect food security and nutrition around the world.In turn, the evidence informs an in-depth look at how to move from silo solutions to integrated food systems solutions. In this regard, the report proposes transformative pathways that specifically address the challenges posed by the major drivers, also highlighting the types of policy and investment portfolios required to transform food systems for food security, improved nutrition, and affordable healthy diets for all. The report observes that, while the pandemic has caused major setbacks, there is much to be learned from the vulnerabilities and inequalities it has laid bare. If taken to heart, these new insights and wisdom can help get the world back on track towards the goal of ending hunger, food insecurity, and malnutrition in all its forms. -
Book (series)Technical bookLampreys of the world. An annotated and illustrated catalogue of lamprey species known to date. 2011
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No results found.Lampreys are aquatic, jawless vertebrates belonging to the Order Petromyzontiformes. The order comprises 39 species widely distributed in the Northern and Southern hemispheres, but virtually absent in the intervening tropical zone. There is one family in the Northern Hemisphere (Petromyzontidae) comprising 35 species and two families in the Southern Hemisphere (Geotriidae and Mordaciidae) comprising, respectively, one and three species. Lampreys undergo a radical metamorphosis from the l arval to the adult form. While lamprey larvae (ammocoetes) of all species are very similar in their habits (filter–feeding on microorganisms in a freshwater habitat), the adults vary considerably in their mode of life. Some are parasitic and anadromous, others parasitic but restricted to fresh water, while still others are nonparasitic (non–feeding) and restricted to fresh water. The taxonomic characters used to describe ammocoetes and adults are fully explained and illustrated. A key to adults and a partial key to larvae are presented. This catalogue provides an account for each of the 39 species. Each species account gives information on the taxonomy including synonyms, common names, diagnostic features of ammocoetes and adults (with drawings of the adult body and oral disc), habitat and biology, geographic distribution (with map), interest to fisheries and references.